The review provides an overview of the theoretical and practical exploration of utilizing blockchain technology to enhance security in small businesses. Small businesses face significant security challenges in the digital age, including data breaches, fraud, and cyberattacks. This paper investigates how blockchain, as a decentralized and immutable ledger technology, can address these challenges by providing transparency, integrity, and trust in business operations. Through a comprehensive examination of blockchain fundamentals and its application in small business contexts, this study elucidates the mechanisms through which blockchain enhances security. Drawing on case studies and theoretical frameworks, the paper explores successful implementations of blockchain solutions, practical considerations for adoption, and the regulatory landscape governing blockchain in small businesses. Additionally, it evaluates the risks and benefits associated with blockchain adoption, providing insights into the potential impact on business operations and compliance requirements. Finally, the paper discusses future trends and innovations in blockchain technology, offering a roadmap for small businesses to navigate the evolving landscape of security solutions. This theoretical and practical exploration underscores the critical role of blockchain in safeguarding small businesses against digital threats while highlighting opportunities for innovation and growth.